head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Pure Mechanics
A rally sim whose procedural stages keep variance alive while rewarding clean car control.

Execution · Pure Mechanics
A rally sim where split-second car control meets imperfect road information on every stage.
DiRT 4 leans Execution (Pure Mechanics); EA Sports WRC leans Execution (Pure Mechanics).
EA Sports WRC leans a little harder on execution, though the gap is small.
DiRT 4
Procedural stages still demand consistent throttle and apex discipline
EA Sports WRC
Rally pace notes demand instant throttle and wheel response
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
DiRT 4
Time-attack structure has no adaptive opponent
EA Sports WRC
Solo stage racing; no opponent to model
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
DiRT 4
Procedurally generated stages prevent full route memorisation
EA Sports WRC
Road surface changes and unseen cuts create real hidden unknowns
EA Sports WRC leans a little harder on optimization, though the gap is small.
DiRT 4
Car choice, setup and rally team progression are solvable systems
EA Sports WRC
Car setup, tyre compound choice and stage routing are solvable
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.